Improvement in tap-cocks



'l' UNITED -STATES PATENT OFFICE.

cLAUDE RENARD, MICHEL FERRET, AND JULES oEsAR vorrURET, oF

MACON, FRANcE.

IMPROVEMENT IN TAP-COCKS.

Specification forming part of Letters Patent No. 96,6! 8, dated November9, 1869.

To all whom it may concern:

Be it known that we, CLAUDE RENARD, MroHEL PERRET, and JULES CESARVorrUREr, all of Macon, Department of the Saone-et- Loire, in the Empireof France, haveinvented an Improved Construction of Cock or Tap; and wedo hereby declare that the following is a full and exact descriptionthereof, reference being had to the accompanying drawings, and to theletters of reference marked thereon.

Ourimproved cock may be termed an everypressure cock." Ils exterior mayassume any of the usual forms. It may discharge the liquid from beneathor by a bent or a straight spout, as shown on the annexed sheet ofdrawings. lt may also be a three-way cock, be made of any kind of metal,and of all sizes.

The interior arrangement of a cock made accordingto our invention isshown at Figure 3, E indicating a metal lid or cap, pierced for thepassage of the stem or plug which governs the movement, and screwedl onthe box, either interiorly or exteriorly; A, washer of leather,india-rubber, gutta-percha, or any other malleable and imperviousmaterial, seized by the inner or outer screw of the cap, and alsopermitting the passage ot' the stem;

B, stern or plug governing the movement, and y to which is fittedinditt'erently a key', a handle, or a spanner, G, of any desired form.This stem passes through the metal cap and leather washer, and carries,so as to form one piece with it, an inner disk of metal, coming onto aleather washer situated above it and acting as an obturator, in themanner hereinafter described.

Gisastem orplugindependentoftherst,but governed by it in the circularmovement by the aid of a mortise, which unites them at the point N N.This stern, like the upper one, has a metal disk of one piece with itand bearing upon a second washer, A', of leather, indiarubber, oranalogous material, which washer rests upon another disk, F, supportingthe entire arrangement, and forming part of the cock, being cast withorbrazed to it. This second leather washer A' is kept in place andprevented from following the hereinafter-dcscribed circular movement bythe ring D, or any other means.

H is a helical spring placed between `the two metal disks, and tendingto press them on the two leather washers above and below them.

The disks C and F and washer A are pierced, Figs. 3 and 4, with twoopenings, L, passing through all three in a directline. 'These openingsmay, according to the description of cock,

be four in number, or there may be but a sin- I gle one. It is onlyrequisite that the disk C should he able to close them, as will now beexplained. The water, arriving by the barrel I, fills the box or chamberof the cock, and hy its pressure pushes the two metal disks against the.two leather Washers, perfectly closing the chamber top and bottom. Thehelical spring is intended to assist this water-power, should itspressure be insufficient, and it may therefore be used or dispensedwith, according to requirement. The liquid beingintroduced into the boxby working the key which actuates the stems or plugs B- C, the lowerdisk turns horizontally on its axis,its openings are brought into linewith those of the washer A and of the immovable disk F, and the water,continuing its course, passes into the barrel J, and issues therefrom,or lby M M, or as at K, Fig. l.

Such is the system, which by the soft friction ot' the two disks on thetwoleather washers prevents any leakage of the liquid, and by theprogressive closin g of the openings avoids all shock. This arrangementmay, it' desired, be provided with a stop, either onthe outside or theinside.

The disk C may without in any way departing from the system abovedescribed assume another shape, permitting it to act as an obturator,arresting not only the entrance but also the exit of the liquid. Thisdisk will then assume a hollow conical form. (See C, Fig. 5.) It bearson a leather Washer, A', having the same shape, and is pierced withholes corresponding with those of this washer. It carries an adherent ornon-adherent stem, governed bythe upper stem and a pressure-spring, asin the preceding case. The working is the same: The openings ofthe coneare brought by a horizontal movement into a direct line with those ofthewasher, and the liquid enters on the pressure of this liquid pushes thedisks one side to run ofil at the other, the liquid against the Washers,closing the chamber top pressing on the cone as on the flat disk. andbottom and forming a. perfectly water- The barrels of this cock may bestraight, tight cock, substantially as described.

curved, or of any of the ordinary forms. CL. RENARD.

What we claim as our invention, and desire PERRET.

to secure by Letters Patent, is VOITURET.

The combination and arrangement of the Witnesses:

disks and Washers Within the chamber o thc GRAMMONT, Mcon,

cock so that on the chamber filling with liquid VANIER, Mcon.

